Construction The pneumatically operated 2/2 way diaphragm valve GEMU 600 is a corrosion-resistant all plastic construction. It has a maintenance-free piston actuator which can be controlled by any inert gas. GEMU 600 has a stroke limiter and an integral optical position indicator. The control functions "normally closed", "normally open" and "double acting" are available.
Features
Suitable for inert and corrosive liquid and gaseous media
Valve body and diaphragm are available in various materials
Connection for pilot valves ace. to NAMUR
Control connection positioned in-line with piping as standard, thus installable in extremely restricted spaces
Construction The GEMU 610 pneumatically operated 2/2-way diaphragm valve has a low-maintenance plastic piston actuator which can be controlled by inert gases. Normally closed, Normally open and Double acting control functions are available.
Features
Suitable for inert and corrosive liquid and gaseous media
The valve is insensitive to particulate, abrasive media
Integral optical position indicator
Compact design
The valve body and diaphragm are available in various materials
Optional flow direction and mounting position
Advantages
All medium wetted parts and housing made of plastic
Construction The GEMU 617 manually operated 2/2-way diaphragm valve has a low-maintenance plastic bonnet. An optical position indicator is integrated as standard.
Features
Suitable for inert and corrosive liquid and gaseous media
The valve is insensitive to contaminated abrasive media
Integral optical position indicator
Compact design
Valve body and diaphragm are available in various materials
Optional flow direction and mounting position
Advantages
All medium wetted parts and the housing are made of plastic
Construction The GEMU 667 pneumatically operated 2/2 way diaphragm valve has a low maintenance membrane actuator. All medium wetted parts and the housing are made of plastic. Valve sizes DN 15 to DN 50 are self-opening due to integral springs (Control function 2), valve sizes DN 65 and DN 80 are opened by the pressure of the working medium on the diaphragm (Control function 5).
Features
Suitable for inert and corrosive liquid and gaseous media
Valve body and diaphragm available in various materials and designs
Insensitive to particulate media
Various connections available
Advantages
Optional flow direction, will seal in either flow direction up to full working ...
Construction All medium wetted parts, the bonnet and handwheel of the GEMU 677 2/2-way diaphragm valve are made of plastic. The maintenance-free plastic bonnet has an economically designed handwheel with integral optical position indicator.
Features
Suitable for inert and corrosive liquid and gaseous media
Valve body available with various connections and materials, diaphragm available in various materials
Insensitive to particulate media
Optional flow direction and mounting position
Advantages
Body and diaphragm sizes have coordinated diameters hence the fitting time is reduced because the pipe and fixing centres remain the same. Spares inventory is also reduced.
Construction The GEMU 690 2/2 way valve has a low maintenance membrane actuator which can be controlled by inert gases. Normally Closed, Normally Open and Double Acting control functions are available. All medium wetted parts and the actuator housing are made of plastic.
Features
Suitable for inert and corrosive liquid and gaseous media
Valve body and diaphragm available in various materials and designs
Insensitive to particulate media
Various connections available
Advantages
Optional flow direction, will seal in either flow direction up to full working pressure
Optional mounting position
Body and diaphragm sizes have coordinated diameters hence the fitting time is ...
Construction The GEMU 693 motorized 2/2 way diaphragm valve has a low- maintenance electric actuator incorporating a reversible synchronous motor and a low maintenance toothed belt drive. It is fitted with a manual override and an optical position indicator.
Advantages
Consistent control system and reliable opening and closing action
Direct 4-20, (0-20) mA control using the optional module GEMU 1284
Optional flow direction and mounting position
20 second operating time provides enhanced flow control capability
Available as an option: electrical position feedback by means of a potentiometer
